Went to Tesco today to buy energy saving candle lights (small screw caps). The ticket said some thing like over a £1 each or buy 5 for a total of 40p :w00t: I couldn't see how could that be so took 5 to the check-out and yep I was charged 40p for all 5 (8p each):-D. They were Tesco Greener living range 9w (=40w) with 10 years life, similar deal for few other shape and size bulbs.
Hope this is useful to someone:whistling: